Ubuntu :: Command To Determine Active User (Not $USER Variable)
Jul 21, 2010
I'm trying to write a small script that will run as root, but launch a command with sudo as another user. I want that user to be whichever user is active user. That is, the user that is using GDM right now, or the one that is logged into the current console. (by current console, I don't mean the user running the script, but rather the user logged into the console currently displayed on the screen.)How can this be done?
Code:
ACTIVE_USER=`somecommand`
test `id -u pulse` -ge 1000 && sudo -u $ACTIVE_USER $*
What can I use for "somecommand"?
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Nov 13, 2009
We have quota system in home directory and there is binary aquota.user file.
How do i determine how much quota is assigned to a user?
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Mar 22, 2010
Is there any way a non-root user can programmatically determine which days the computer ran during, say, the last month?
The information is in /var/log/messages.* but those files are root:root 640.
Non of the world-readable /var/log files on the Slackware 13.0 development system can be used:boot Not present if boot logging not enabled (default). dmesg No timestamps. lastlog Not enough info. wtmp Rewritten on each boot so not enough info. EDIT: not correct: by default wtmp is rotated weekly and kept for one month as configured in /etc/logrotate.conf xdm.log Not present if xdm not used. Xorg.0.log Not present if X not run.
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Jan 12, 2011
What functions are available on linux for a c++ program to determine if the current user is a member of a specific user group?
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Oct 4, 2010
Is there a way to inhibit Transmission at times when a user is active and only have it downloading/seeding when the computer is idle (or is there another Torrent client that will do so)? I know about the limits that can be set, but those are clock based, not activity based limitations. As it is now, when it is running, my web browsing speed and other online activities take a big hit in responsiveness. I want to be responsible and seed completed downloads. However, the performance hit makes it difficult to tolerate, and manually pausing and resuming torrents every time I sit down at the computer or get up to leave is inconvenient.
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Jul 28, 2010
Outside of using something like screen, is it possible to 'assume' an active user session under Linux/UNIX?For example, I ssh to my server from home. Then I ssh to it form work. I want to kill the home-spawned session, and "take-over" all of the processes that it had running.
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Jan 27, 2011
I have around 12 users, with their profiles present on a Windows 2003 Active Directory and I would like to migrate to an open source free alternative.Could you recommend any alternative that supports the migration of user files from Active Directory?
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Jan 20, 2010
I'm trying to build my own livecd using the debian live project: [URL]. At the end (/usr/lib/finish-install.d) I want the installler to change some configuration files. The custom user selected during the installation I want to put into a variable:
Code:
#!/bin/sh
User=$(getent passwd 1000 | sed -e 's/:.*//')
if [ "$User" != "user" ] ; then
in-target sed -i "s/home/user/home/$User/g" /etc/smb.conf
in-target sed -i "s/USER=user/USER=$User/g" /etc/default/sabnzbdplus
fi
The script seems to work fine because when I have a look at the configuration files the lines have been modified. However the $User was empty. Anyone of you have some knowledge about debian-live and know how to retrieve the custom user that was entered during the installation?
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Feb 2, 2011
I followed these steps to add a client to my active directory domain, everything is working as expected except that when a username has whitespace it creates a directory in /home with whitespace and gconf fail to access his config dir in the user's home. KDE also fails to start but I don't know what's failing yet. I found that the easiest way to fix these issues is to replace whitespaces by underline in homepaths so I changed the pam_mkhomedir source to replace the whitespaces and save it using the usermod command. It should work but is not... the reason is that I can't change the user data using the usermod because domain users are not in /etc/passwd.
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Apr 8, 2010
I have a script in which it searches the password file for a username based on the user's input. Is there a way I can take the bad input and keep it in a variable. (one that keeps adding all the non-existent users)so how would I get non-existent users into another variable?
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May 19, 2011
My all production PC r running under ADC windows2008 server. Recently I implement a file server in CentOS 5. Now I want to integrate Samba (File sharing) using Active Directory so that all access permission to file server comes from AD's permission.
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Sep 25, 2009
I'm sure you all seen how you can use curl to post to you twitter acct. What I'm wondering is how to add a variable to take user input and post that imput.
Code:
#!/usr/bin/perl
"Enter tweet: ";
$msg = <STDIN>;
[Code]...
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Jan 28, 2010
I heard (although I can't find any sources for proof) that the USER environment variable may not be set in a old Unix shells (maybe even some obscure shells as well). What is the probability that it won't be set?
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Mar 8, 2011
setup user authentication server and internet accounting server like ISA and Active Directory in Windows?
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Oct 15, 2010
I set up some scripts n crontab and I found that the scripts are failing because cron seems not to load my user PATH variable. Is there any way to tell cron to load my PATH variable?
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May 3, 2011
I'm trying to call a specific variable based on a user selection. For example:
Code: Select a file:
[1] foo.tar
[2] bar.tar
Enter a selection: I have already coded each possible selection to have its own variable. If the user selects 2 I need to select $SELECTED_TAR2, or if they select 1 I need to select $SELECTED_TAR1 and then do something like this behind the scenes:
Code: cp /home/user/$SELECTED_TAR2 /home/user/backup/$SELECTED_TAR2
I was thinking something like this:
Code: echo "Enter a selection: "
read -e SELECTED_NUMBER
cp /home/user/$SELECTED_TAR$SELECTED_NUMBER /home/user/backup
[code]....
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Mar 29, 2010
I got ubuntu working fine on my netbook and wanted to play around with opensuse. I have it installed and everything works fine except my wireless connection. I have updated everything since the installation through a wired connection, that didn't help. I have read the stickies, but to be honest, I'm so new to this stuff I'm kinda lost. So my wireless network has a WEP encryption and I have entered that password as a 64 HEX Key in the Wireless Manager widget. It connects to the network and says is labeled as active, however there is still the yellow exclamation shield next to the connection. Firefox and other apps don't have access to the internet.
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Aug 31, 2011
Xguest uses namespace.d/xguest.conf.
[code]...
root user won't be able to read the "active" xguest home directory (ll /home/xguest will only show an almost empty folder with content from /etc/skel). How can a root user list the folder of an the xguest home directory (while xguest is logged in)?
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Apr 4, 2011
i want in the website they ask to enter some input.Code:echo -e "<p>Please Enter Year : c</p> "read Yearif i use this command it will ask the user to enter year in command. but what i want is they ask the user to enter year in web browser.
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Jan 6, 2010
Original HOWTO can be found at: [URL]... So the other day I was in IRC and someone had brought up a problem where they created a new Administrative user, but didnt have rights to use sudo. Looked into the problem a little bit to figure out what was wrong, and it turns out that when you create a new user through the user manager (in kubuntu, anyways. Havent tested in Gnome.) the user gets added to the adm group, however, a quick look at the sudoers file shows that its looking for users in the admin group to allow the use of sudo. So, to solve the problem we do the following: If youre on the new admin user (which Im assuming you are) use the following commands:
Code:
su [insert username of old account without brackets]
sudo usermod -G admin [username of new admin account without brackets]
exit
Then simply logout, and then log back in (not always necessary, but the easiest way to flush the permissions.)
Code:
su [insert username of old account without brackets]
Means were going to Switch User to the old admin account
Code:
sudo usermod -G admin [username of new admin account without brackets]
This simply adds the admin group to the secondary group list for the new user
Code:
exit
Pretty self explanatory
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Jan 18, 2010
I wanted to create an user but don't allow it to see the other user's home folder so I made chmod 0750 /home/folder and it worked fine so I went ahead and decided to completely forbid access to the root folder and I had the "great" idea to make chmod 0750 /, and now I'm having problems with wine and other applications, in example I used to have a folder in this address 209.239.114.51/mmgr but now it's giving me errors and if I try to run some applications I got error "There was an error creating the child process for this terminal"
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Jun 16, 2011
Do you think there is a way of accessing different user data from another account which I have set up.
Ie. user 1 = account has messed up
user 2 = account works fine
access user account 1 home directory from user 2 work space?
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Jan 10, 2010
I have 2 users and I would like to copy all the files and folders in one home dir to another.... sounds simple, til i got started. Ive tried
Code:
sudo cp -nRv /home/user1/* /home/user2
but that didnt copy the .* folders. Im after the firefox and thunderbird folders mainly, but all of them is OK too.
im talking about the .adobe, .amsn ..........
How can I copy the .* folders from one user home folder to another and then give the correct permissions to the new user.
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Sep 3, 2010
This netbook only has a user with non-administrative privs on it and root user but I do not have root's password.Is there a way that I can create a new administrative user of change the current user's group so that it can do sudo commands or have more privs?
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Oct 31, 2010
why the user created at installation time is a Custom User instead of an Administrator.
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Sep 29, 2010
I have a user account which is required to run as part of the operating system and as a service. I am currently attempting to install my companies software on an Ubuntu desktop via wine just for the purpose of finding out if it's do-able.
Is there a way, in Ubuntu, for a user account to be given the local rights assignment to act as part of the operating system and to function as a service in the background?
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Oct 24, 2010
I can SSH to my own box using "ssh -X arancaytar@localhost" and run graphical applications. When I try the same using "ssh -X chris@localhost", I get an error message saying
Code:
chris@enki:~$ gedit
X11 connection rejected because of wrong authentication.
[code]....
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Oct 29, 2010
Im trying to limit the diskspace users on the system may consume, and i found quotas (im a total linux noob). But when i try to set it, no matter what i set it to the maximus is 2 GB. Now... i need quite a lot more than that. One user should be able to use 1900 GB and the other 600 GB. How can i fix this? Im using ubuntu server 10.04.
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Apr 30, 2011
I'm running a browser (google-chrome) as a different user.
To achieve this, I do the following:
Code:
$ sudo xhost +
Then run the command you want as the other user:
Code:
$ sudo -i -u <username> /opt/google/chrome/chrome
Then when I'm done browsing, I do:
Code:
$ sudo xhost -
[Code]....
Instead of doing pkill pulse, is there any way to redirect the sound output (Flash Player) from <browser user> to <current gnome user>, so I don't have to pkill the sound daemon of the current user ?
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Jul 28, 2011
i'm new to linux and just installed Ubuntu and decided to play around with it. i just executed
Code: useradd test which supposedly creates a folder in the home directory '/home/test' but when i look in there i can't see it i also did a
Code: grep test /etc/passwd which returns: 'test:x:1001:1001::/home/test:/bin/sh' which i believe means it is meant to exist.
Addendum: I have also now noticed that when i log in and log back in i have the option to login as 'test' but it prompts me for a password which i did not set :s
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